It was a claim liberals were making all last week about the NRA convention in Nashville: the everyone-should-be-armed crowd would not be allowed to carry their guns.

The claim was made many times, many places including in an editorial at The New York Times, one problem. It was false. Here is how The Grey Lady put it on Friday in the original version of their editorial.

Seventy-thousand people are expected to attend the National Rifle Association’s convention opening on Friday in Tennessee, and not one of them will be allowed to come armed with guns that can actually shoot. After all the N.R.A. propaganda about how “good guys with guns” are needed to be on guard across American life, from elementary schools to workplaces, the weekend’s gathering of disarmed conventioneers seems the ultimate in hypocrisy.

The opening of the editorial, and the entire premise, were not supported by the truth. The NRA convention was held Music City Center, a venue that allows concealed carry for anyone with a proper permit. Only the Alan Jackson concert Saturday night, held at the privately owned Bridgestone Arena, did not allow convention goers to arm themselves. After it was pointed out how wrong they were, in places such as The Federalist, The Times posted this correction at the bottom of an updated editorial.

Correction: April 11, 2015

An editorial on Friday about the National Rifle Association’s convention incorrectly described the rules for carrying concealed firearms at the event. Carrying is prohibited at one of the main convention venues, not all of them.

That is what was published at the bottom, at the top, a major change.

Seventy-thousand people are expected to attend the National Rifle Association’s convention opening on Friday in Tennessee, but they won’t be allowed to carry firearms in one of the main convention venues. This may run counter to the N.R.A.’s ideas about carrying guns everywhere, from elementary schools to workplaces.

But even that is misleading. Is it fair to say an arena that held one concert in a weekend long convention is a main venue? It probably doesn't matter since The Times doesn't appear interested in fairness on this issue.